Malicious PDF — malware analysis report

Static analysis result for SHA-256 629e5c304f137500…

MALICIOUS

PDF

51.4 KB Created: 2020-08-20 01:00:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c07d77d704cda19e026ec860de3f759b SHA-1: 6ff449d1d1a352980c272dbe3f8011996ee6ae03 SHA-256: 629e5c304f137500abb1db7aa63a921cb284400fd826c863e42f11de170f44a7
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to external resources, indicating a link farm or redirection strategy. One critical heuristic identified a link to known malicious redirector infrastructure, suggesting an attempt to lead users to harmful sites. The document body, though partially corrupted, contains text related to 'best manual can opener canada' and includes the malicious URL, likely as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=best+manual+can+opener+canada
    • http://xewuw.ronjasvaneborg.com/uploads/1/3/1/0/131070934/vuwep_votikojifi_furejipit.pdf
    • http://wuparuwi.mikemarksarts.com/uploads/1/3/1/1/131164250/5759071.pdf
    • http://lenep.calmairgahvac.com/uploads/1/3/1/4/131437919/5f5ce6b5f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0433/8073/6165/files/xerojepuwum.pdf
    • https://cdn.shopify.com/s/files/1/0435/8062/0963/files/aaruthra_tamil_movie_audio_songs.pdf
    • https://cdn.shopify.com/s/files/1/0446/9764/9306/files/chatrapathi_movie_sad_bgm.pdf
    • https://cdn.shopify.com/s/files/1/0440/2744/5413/files/texalomudomirulapoj.pdf
    • https://cdn.shopify.com/s/files/1/0436/3865/3086/files/52988019096.pdf
    • https://cdn.shopify.com/s/files/1/0437/4557/5061/files/51882876985.pdf
    • https://cdn.shopify.com/s/files/1/0429/5573/5199/files/loop_in_r.pdf
    • https://cdn.shopify.com/s/files/1/0431/0145/4500/files/python_discord_webhook.pdf
    • https://cdn.shopify.com/s/files/1/0439/0541/7371/files/imd_competitiveness_report.pdf
    • https://cdn.shopify.com/s/files/1/0437/3551/5290/files/movijebugovefun.pdf
    • https://cdn.shopify.com/s/files/1/0437/7142/9021/files/87228867120.pdf
    • https://cdn.shopify.com/s/files/1/0437/9561/1809/files/fallout_3_lincoln_repeater.pdf
    • https://cdn.shopify.com/s/files/1/0438/8782/0968/files/hpcl_mittal_energy_limited_annual_report_2017.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007fca.bin
7341ba1d78fa5ffb876b68b7ae69d5993d6de14e07d3a3ad051953eeb6cd1572		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FCA 5104 bytes
font_01_sfnt_off000090fc.bin
02fc03850d93d1c4d83ab6521d2a9c64e8c75bfbf3f69121514cda64061bce6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90FC 9856 bytes
font_02_sfnt_off0000b283.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB283 4324 bytes

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